<template>
  <!--
    组件封装的场景：
      1. 复用性
      2. 可维护性
  -->
  <el-dialog
    title="新增员工"
    :visible="dialogVisible"
    width="50%"
    @close="closeDialog"
    @open="openDialog"
  >
    <!-- 表单 -->
    <el-form ref="employeeRef" :model="employeeForm" :rules="employeeRules" label-width="100px">
      <el-form-item label="姓名" prop="username">
        <el-input
          v-model="employeeForm.username"
          style="width: 90%;"
          placeholder="请输入姓名"
        />
      </el-form-item>
      <el-form-item label="手机" prop="mobile">
        <el-input
          v-model="employeeForm.mobile"
          style="width: 90%;"
          placeholder="请输入手机号"
        />
      </el-form-item>
      <el-form-item label="入职时间" prop="timeOfEntry">
        <el-date-picker
          v-model="employeeForm.timeOfEntry"
          style="width: 90%;"
          placeholder="请选择入职时间"
        />
      </el-form-item>
      <el-form-item label="聘用形式" prop="formOfEmployment">
        <el-select
          v-model="employeeForm.formOfEmployment"
          style="width: 90%;"
          placeholder="请选择"
        >
          <el-option label="正式" :value="1" />
          <el-option label="非正式" :value="2" />
        </el-select>
      </el-form-item>
      <el-form-item label="工号" prop="workNumber">
        <el-input
          v-model="employeeForm.workNumber"
          style="width: 90%;"
          placeholder="请输入工号"
        />
      </el-form-item>
      <el-form-item label="部门" prop="departmentName">
        <!-- options：用于指定级联选择器下拉出来的树形数据 -->
        <!--
          props：可以对组件做一些配置
            checkStrictly: true 表示取消父子关联，可以选中任意一级的节点
            checkStrictly: false 表示不取消父子关联，只能选中叶子节点
        -->
        <!-- show-all-levels：用于控制在输入框中是否显示选中值的所有层级 -->
        <el-cascader
          v-model="employeeForm.departmentName"
          style="width: 90%;"
          placeholder="请选择"
          :options="list"
          :props="{
            checkStrictly: true,
            label: 'name',
            value: 'name'
          }"
          :show-all-levels="false"
        />
      </el-form-item>
      <!--
        prop 的作用：
          1. 指定表单项验证的字段
          2. 使用 resetFields 方法清空表单时，只能清空设置了 prop 的表单项
       -->
      <el-form-item label="转正时间">
        <el-date-picker
          v-model="employeeForm.correctionTime"
          style="width: 90%;"
          placeholder="请选择转正时间"
        />
      </el-form-item>
    </el-form>
    <span slot="footer" class="dialog-footer">
      <el-button @click="$emit('close-dialog')">取 消</el-button>
      <el-button type="primary" @click="submit">确 定</el-button>
    </span>
  </el-dialog>
</template>

<script>
import { getDepartmentList } from '@/api/department'
import { transTree } from '@/utils/transTree'
import { addEmployee } from '@/api/employee'

export default {
  props: {
    dialogVisible: {
      type: Boolean,
      required: true
    }
  },
  data() {
    return {
      // 表单数据对象
      employeeForm: {
        username: '',
        mobile: '',
        timeOfEntry: '',
        formOfEmployment: '',
        workNumber: '',
        departmentName: '',
        correctionTime: ''
      },
      // 表单验证规则对象
      employeeRules: {
        username: [
          { required: true, message: '用户姓名不能为空', trigger: ['blur', 'change'] },
          { min: 1, max: 4, message: '用户姓名为1-4位', trigger: ['blur', 'change'] }
        ],
        mobile: [
          { required: true, message: '手机号不能为空', trigger: ['blur', 'change'] },
          { pattern: /^1[3-9]\d{9}$/, message: '手机号格式不正确', trigger: ['blur', 'change'] }
        ],
        formOfEmployment: [
          { required: true, message: '聘用形式不能为空', trigger: ['blur', 'change'] }
        ],
        workNumber: [
          { required: true, message: '工号不能为空', trigger: ['blur', 'change'] }
        ],
        departmentName: [
          { required: true, message: '部门不能为空', trigger: ['blur', 'change'] }
        ],
        timeOfEntry: [
          { required: true, message: '请选择入职时间', trigger: ['blur', 'change'] }
        ]
      },
      // 级联选择器的数据
      list: []
      // label
      // value
      // children
    }
  },
  methods: {
    // 点击 X 和蒙板时，触发的事件回调函数
    closeDialog() {
      // 手动关闭弹窗
      // 触发自定义事件，通知父组件关闭弹窗
      this.$emit('close-dialog')
      // 重置表单内容
      this.$refs.employeeRef.resetFields()
      // 手动清空入职时间的字段
      this.employeeForm.correctionTime = ''
      // 手动清空部门的字段
      this.employeeForm.departmentName = ''
    },
    // 弹窗打开时，会触发的事件回调函数
    async openDialog() {
      // 发起请求，获取部门列表数据
      const res = await getDepartmentList()
      // console.log(res);
      this.list = transTree(res.data.depts)
      // console.log(this.list);
    },
    // 点击确定，完成新增员工功能
    submit() {
      // 兜底校验
      this.$refs.employeeRef.validate(async(valid) => {
        if (!valid) return
        // 校验通过
        // 发起请求
        await addEmployee({
          ...this.employeeForm,
          departmentName: this.employeeForm.departmentName[this.employeeForm.departmentName.length - 1]
        })
        // 提示用户
        this.$message.success('新增员工成功')
        // 关闭弹窗
        this.$emit('close-dialog')
        // 刷新表格数据
        this.$emit('get-employee-list')
      })
    }
  }
}
</script>

<style>

</style>
